Dual-channel laser system with gap-less tuning from 250-1300 nm at megahertz repetition rates for time-resolved photoelectron-emission microscopy and spectroscopy

A dual-channel, high-power laser system with gap-less tuning from 250-1300nm at 30-50 femtoseconds pulse duration is presented as the ideal tool for time-resolved photo-emission microscopy and spectroscopy experiments at repetition rates up to 4 MHz.